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How to show “Done” button on iPhone number pad
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@BenPotter You would set the barTint for the bar color and tint color for the text. You could also create the UIBarButton items out side of the intializer and set the color for them explicitly there.
– ocross
May 6 '14 at 23:55
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Simplest way to detect a mobile device in PHP
...Code:
<?php
$useragent=$_SERVER['HTTP_USER_AGENT'];
if(preg_match('/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|...
How to tell where a header file is included from?
...med. I found -MD is a very useful option instead, it performs the compile and puts the output in myObj.d instead. Making a suitable param for just prepending to your compile line without strange effects like *.o now contains the output instead of the binary. Thanks for your help.
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String length in bytes in JavaScript
...te sequence, or a byte whose first hex digit is C, D, E, or F. The second and subsequent bytes are the ones whose first two bits are 10. Those are the extra bytes you want to count in UTF-8.
The table in wikipedia makes it clearer
Bits Last code point Byte 1 Byte 2 Byte ...
jQuery on window resize
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Here's an example using jQuery, javascript and css to handle resize events.
(css if your best bet if you're just stylizing things on resize (media queries))
http://jsfiddle.net/CoryDanielson/LAF4G/
css
.footer
{
/* default styles applied first */
}
@media scre...
Why do we need virtual functions in C++?
I'm learning C++ and I'm just getting into virtual functions.
26 Answers
26
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How to use NSCache
... into account:
// Your cache should have a lifetime beyond the method or handful of methods
// that use it. For example, you could make it a field of your application
// delegate, or of your view controller, or something like that. Up to you.
NSCache *myCache = ...;
NSAssert(myCache != nil, @"cache...
Use JAXB to create Object from XML String
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To pass XML content, you need to wrap the content in a Reader, and unmarshal that instead:
JAXBContext jaxbContext = JAXBContext.newInstance(Person.class);
Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();
StringReader reader = new StringReader("xml string here");
Person pe...
Set default CRAN mirror permanent in R
...://my.local.cran"
# options(repos=r)})
So remove the comment marks and change "http://my.local.cran" to the correct website, e.g.:
local({r <- getOption("repos")
r["CRAN"] <- "http://cran.r-project.org"
options(repos=r)})
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ArithmeticException: “Non-terminating decimal expansion; no exact representable decimal result”
... setting of a MathContext object with a precision setting of 0 is not used and thus irrelevant. In the case of divide, the exact quotient could have an infinitely long decimal expansion; for example, 1 divided by 3.
If the quotient has a nonterminating decimal expansion and the operation is specifie...